Governor for steam-engines



(No Model.)

J. MOORE.

GOVERNOR POR STEAM ENGINES. No. 322,956. atented July 28, 1885.

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JOSEPH MOORE, OF SAL FRANCISCO, CALIFORNIA.

GOVERNOR FOR STEAM-ENGINES.

SPECIFICATION forming part of Letters Patent No. 322,956, dated July 28,1885.

Application filed August 27, 1884. (No model.) I

To all whom, it may concern.-

Be it known that I, JosEPH MOORE, of San Francisco, State of California,have invented a new and Improved Governor for Steam-Engines, WVater\Nheels, Hydraulic, Air, and other Engines to which it may be foundapplicable, of which the following is a specification.

My invention relates generally to such speed and power regulators ofengines as operate through the medium of a centrifugal ball orequivalent species of automatic governor, whether such regulators beapplied to steam or other kind of engine.

It consists in applying a peculiar form of hydraulic engine inconnection with the ballgovernor, which engine is so proportioned andsupplied with a motive power as to have any desired force to move thevalve or gate or cutoff device to which it is connected, to the end ofcontrolling the supply of the motive power to engine it is intended toregulate, leaving the ball-governor to do nothing more than control thevalve motion of this hydraulic engine, which in itself requires only alight and delicately-operating form of governor.

The object of the invention is to dispense with heavy and cumbersomegovernors, which would be necessary to give force enough to regulatelarge engines, and also to make such regulators more delicatelysensitive to variations and changes of speed.

In the accompanying drawings, Figure 1 is a sectional elevation of allthe parts constituting my invention, showing them related toacut-offdeviceofasteam-engine. Fig.2isaplan.

In both figures like letters of reference refer to like parts.

In Fig. 1, A is a shaft rotated by a belt and pulleys by the engine orother machine whose speed and action is to be regulated. Upon this shaftis the usual bevel or miter gear, B, engaging with its companion gear,O, on the upright driving-spindle D of the ball-governor. This spindlerotates, but does not move vertically, and is not affected by thespreading of the governor-balls. At (1 there arelugs, from which thearms E of the balls F are hung. At the center of the balls F the forkedconnectinglinks G are pivoted, the other ends of which are secured tothe cross-bar H, which passes through a slot formed for it in thespindle D.

This cross-bar supports the spindle I, and when the governor-ballsspread apart or close together, as the speed of the engine varies, thecross-bar moves up or down, and carries the spindle I with it. Thespindle I extends upward to connect with the short end of thedifferential lever J in any suitable manner. I show in the drawings thattheleverJ is forked at this end, the forked ends spanninga collar, K,which has an oval or slot-ted hole therethrough, and pins pass throughthe forked end and into the sides of the collar, so thatthe collar mayremain level as the lever swings up and down. The spindle I passesthrough this collar, and is secured by the screw-nuts L L above andbelow. The opposite end of the lever J connects with the piston-rod M bya forked end spanning a boss on end of the rod and a pin, m, passingthrough both.

At near one end the lever J connects,through the medium of the links N,to the stem of the double piston-valve O, which valve moves up and downin the cylinder P to open and close the passages intothe pipes Q Q.These pipes lead to the main cylinder R, in which the piston M moves upand down.

From the pin m, which connects the leverJ to the piston-rod, theredepends on each side links S, the lower ends of which connect with thedouble-armed levers T, which vibrates the shaft U. This shaft U may bethe stem of a steam throttle-valve, the intermediate connection to ahydraulic valve; or it may, as shown in the drawings, be the means ofconveying motion to any suitable cutoff device of a steamengine.

The invention does not extend to the cut-off device, therefore I neednot describe its construction further than shown in the drawings, whereit is marked V.

There is a pipe,W,which conveys water under pressure (obtained by havingthe supplytank on the high roof of a building, or it may in cities andtowns be obtained from the streetmains) into the middle of the cylinderP, and another pipe, IV, conveys it away when exhausted. The valve O ishollow, so that the exhaust from the upper port may pass down throughit, there being a couple of holes shown in the hollow part of the stemjust above the top valve. Above these holes the valve is made solid.

There are the usual stuffing-boxes supplied, as shown, for both theupper and lower part of the piston-rod M and upper end of valve-rod 0,where these pass out-0f their respective s cylinders.

X is a counterbalance-weight, which, being hollow, may be partly filledwith a liquid, so as to get a perfect adjustment in the service ofbalancing the weight of the piston and long vo end of lever J.

There may be ahole at upper part of the hollow counter-weight to fill itby, and another at the bottom plugged up to draw off by, in adjustingthe exact quantity that is necessary to balance the parts.

The frame-work of the device is marked Y. Its construction can easily beunderstood from the drawings without further description.

The operation is simple,and as follows: The

:0 ball-governor by the variations of the speed of the engine moves thespindle I up and down, which communicates motion to the piston-valve O,to the eflect of admitting pressure to, above, or below the piston M,which in risz 5 ing and falling communicates motion through intermediatemechanism to the cut-off gear or other device to which it is applied tofinally control the supply of motive power to the engine, thusregulating its speed;

As the differential lever by its action moves 0 the valve up or down itsfulcrum is changed at the other end by the rise or fall of the piston towhich it is connected, thus causing the valve to be returned to itsnormal position. The valve is thus made very delicate in its operationand extremely sensitive to the slightest variation of motion.

What I claim as my invention, and desire to secure by Letters Patent isas follows:

The combination,with a suitable centrifugal governor, of the hydrauliccylinder R, having inlet and outlet passages, as shown, piston M, androd M, valve 0, movingin suitable chamber to control the action of saidpiston and rod, and the differential valve-mover consisting of 5 thevalve J, connected, first, at one end with the end of piston-rod M,second, at the other end with the governor-spindle I, and intermediatelywith the stem of the valve 0, arranged and operating substantially asand for 50 the purpose herein described.

JOSEPH MOORE.

Witnesses:

GEO. PARDY, FREDERICK T. NEWBERY.

